TREES THEIR PLANTING AND CARE. 



63 



border of a corner group, or, as in Fig. 27, in the centre of 

 isolated groups, the smaller or more graceful and orna- 

 mental kinds being grouped about them, and if possible so 



FIG. 27. LARGE-GROWING TREES AHRANGED IN CENTRE OP 

 GROUPS. 



that there may be a gradual diminution in size at all points 

 of view from the centre to outside of the group. 



The size of the trees to be used must vary with the 

 extent of the grounds on which they are planted and the 

 height of the desired shelter. On very small lots a single 

 large tree with a few smaller ones grouped around it will 

 afford much shelter. 



